78.97% is the change from 428 to 766
Calculation steps:
[( 766 - 428 ) ÷ 428] x 100 = 78.97%
Formula
Percentage change = [(766 - 428) / 428] x 100
Subtract the new number by the original number
766 - 428 = 338
338 ÷ 428 = 0.7897196261682243
0.7897196261682243 x 100 = 78.97%